Device for trimming and paring hoofs.



N 767 34 PATENTED AUG. 9 1904.

0 W. G. JACKSON.

vDEVICE FOR TRIMMING ANDPARING HOOPS.

APPLICATION FILED FEB. 10. 1904.

N0 MODEL,

UNITED STATES Patented August 9, 1904.

PATENT OEEICE.

IVILLIAM G. JACKSON, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF ONE-HALFTO JOSEPH A. MCCORMICK, OF SAN FRANCISCO,

CALIFORNIA.

DEVICE FOR TRIIVIMING AND PARING HOOFS- SPECIFICATION forming part ofLetters Patent No. 767,344, dated August 9, 1904.

Application filed February 10, 1904. Serial No. 193,025. (No model.)

To all whom 7 2% 11111 7 co/warn:

Be it known that I, IVILLIAM G. JACKSON, a citizen of the United States,residing at San Francisco, in the county of San Francisco and State ofCalifornia, have invented certain new and useful Improvements in Devicesfor Trimming and Faring Hoofs, of which the following is aspecification.

This invention relates to clippers for trimming and paring hoofs, theobject of the in- Y vention being to provide a device of this characterwhich is simple, powerful, and convenient in operation.

My invention therefore resides in the novel construction, combination,and arrangement of parts for the above ends hereinafter fully specifiedand particularly pointed out in the claim.

In the accompanying drawings, Figure 1 is a side elevation of the deviceopened. Fig. 2 is a partial longitudinal section of the device in itsclosed position.

Referring to the drawings, 1 represents a stationary handle having a jaw2. Upon an upward extension 8 between said jaw and handle is pivoted amovable jaw 4:. A bent spring 5 normally presses said jaws apart. Thisspring is secured to the stationary jaw 2- and curves inward against theinner face of the movable jaw I. Thus it is completely out of the way ofthe link connecting the two jaws.

6 represents the movable handle, which is formed near its working endwith an elbow or angular portion 7, adapted when the handles are closetogether to enter the recess or corner 8 between the stationary handleand the extension 3. The working end of said movable handle is connectedto the stationary jaw 2 by means of a link 9, H-shaped or having forkedends 10 and 11 pivoted, respectively, to the movable handle andstationary jaw. The inner surface of said movable handle is formed withratchet-teeth 12, which engage with ratchet-teeth 13, formed upon theouter surface of the movable jaw.

The operation of the device is as follows: The spring 5 normally keepsthe movable jaw blunting each other.

pressed against the working end of the movable handle, so that theratchet-teeth are normally in engagement with each other. Whenthemovable handle is opened out, the end of said handle beyond the.point where it is pivoted to the link acts as a cam or a very short armof a lever bearing down upon said movable jaw and pressing it withpowerful pressure toward the fixed jaw. This pressure increases as thejaw is opened, because the end of the link connected with said movablehandle moves forward toward the cutting ends of the jaws, and thereforethe pressure of the movable handle upon the movable jaw is appliedprogressively at a greater distance from the pivot of said movable jaw.The H-shaped link is cut away sufficiently to allow the cutting edge ofthe movable jaw to approach. close to that of the fixed jaw, but not tocome into contact with it. Said movable jaw is stopped by said linkimmediately before contact with the fixed jaw. Thus the cutting edges ofthe two jaws are prevented from I claim In a device of the characterdescribed, in combination a stationary handle and jaw, the handle havingan extension to form a pivot for the movable jaw, a movable handle bentto form an elbow entering the recess or cornerformed by said stationaryhandle and extension to arrest the inward relative movement of thehandles, an H-shaped link connecting the movable handle with the fixedjaw, the central portion of said link forming a stop arresting theinward movement of the movable jaw to prevent the cutting edge thereofcoming into contact with the cutting edge of the stationary jaw, andmeans for opening the jaws, substantially as described.

In witness whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

W. G. JACKSON. Witnesses:

FRANCIS M. WRIGHT, BEssIE GORFINKEL.

